Electronics > Projects, Designs, and Technical Stuff
my own original oscillator
joeqsmith:
--- Quote from: krayvonk on July 10, 2019, 10:35:20 am ---Rerouter.
I do have an important beginner question.
What is the most analogous capacitor in pneumatics, and is it trickier to use?
--- End quote ---
An accumulator (tank, vessel) would be comparable to a capacitor, where a restrictor (orifice, hole) would be a resistor. Smaller the hole, the higher the resistance. Larger the tank, higher the capacitance. Tubing for example could be a accumulator or restrictor, depending how it is used. Not sure what the tricky part would be.
An example would be the air shift on my motorcycle. Here you can see the accumulator (capacitor) which is storing the gas for the shift cylinder. In this case, the shift happens very faster than the regulator can respond. The accumulator is downstream from the regulator and is larger than the cylinder. Similar to a bulk capacitor.
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I have added a view looking from the right side of the bike to show the shift cylinder.
--- Quote from: krayvonk on July 10, 2019, 07:26:13 am ---Yes, I see, your telling me the led is adding another variable to the situation. Got to be more careful about things...
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Obviously, you need to be accurate when describing a circuit or no one will be able to understand and follow you (assuming that is your goal). Of course, if you like to troll about UFOs and circuits, fuzzy pictures and inaccurate documents are the way to go. Just depends what you are after.
I look at EVERY part in a circuit as a variable. That's not a bad thing. They all have tolerances and such. It's up to the designer to account for all of this.
krayvonk:
By shift cylinder you mean pneumatic transmission? If thats what it is, thats pretty amazing, never heard of it before.
ebastler:
--- Quote from: krayvonk on July 10, 2019, 12:04:45 pm ---By shift cylinder you mean pneumatic transmission? If thats what it is, thats pretty amazing, never heard of it before.
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It's pneumatic-driven shifting of a mechanical (gearwheel-based) gearbox.
ArthurDent:
--- Quote --- "It's pneumatic-driven shifting of a mechanical (gearwheel-based) gearbox."
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Some transmissions use fluid amplifiers to shift but there are also fluid oscillators with no moving part in the usual sense. Check this link and note the feedback loops that make this oscillate.
Rerouter:
Then there is even just structural fluid and air oscillators. Generally used for flow measurement. You run airor water past an obstacle and you get an oscillating vortex with a frequency proportional to the flow rate.
https://www.enggcyclopedia.com/2011/07/vortex-flow-meter/
As to pnumatics. At a simple level anythere there is volume is a capacitor. Anywhere there is a restriction is a resistor. And any gas with mass acts like an inductor. 1 way valves are like diodes. You loose some pressure passing through them.
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